Alder moth vs Sycamore moth

The Alder moth (*Acronicta alni*) is a species of noctuid moth found across the Palearctic region, including Europe and parts of Asia. The adult moth possesses greyish, cryptic forewings that allow it to blend seamlessly into tree bark. Its most distinguishing feature is the larval stage, where the caterpillar transitions through various colorations, eventually displaying striking black and yellow...

The Sycamore moth is a species of moth belonging to the family Noctuidae, originally described in 1758. It is commonly found across Europe and parts of Asia. The species is most notable for its distinctive larval stage; the caterpillars are densely covered in yellow hair and feed primarily on sycamore and horse chestnut trees. These bright, hairy caterpillars are often encountered by humans in lat...